Ratatouille-Inspired Roasted Vegetable Stew

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A vibrant, aromatic stew of roasted zucchini, eggplant, bell peppers, and tomatoes simmered with garlic and fresh herbs for a hearty vegetarian Whole30 meal. This french-inspired vegetarian (whole30) ready in about 55 minutes pairs large, seeded and diced red bell pepper, pint, halved cherry tomatoes, divided extra virgin olive oil for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 180 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 35 min Serves 4 French cuisine 180 cal/serving
Build a week of meals around this recipe → Shop this recipe on Instacart → Shop equipment ↓

Ingredients

Equipment for this recipe

Top-rated tools to make this recipe successfully.

More Bakeware & baking tools → Shop all kitchen tools →

Instructions

  1. Step 1: Preheat the oven to 400°F. On a large rimmed baking sheet, toss 2 diced medium zucchinis, 1 diced medium eggplant, 1 diced large red bell pepper, 1 diced large yellow bell pepper, and 1 pint halved cherry tomatoes with 3 tbsp extra virgin olive oil, 1 tsp sea salt, and 1/2 tsp freshly ground black pepper until evenly coated. Spread in a single layer.
  2. Step 2: Roast the vegetables for 25 minutes, stirring halfway through, until tender and caramelized at the edges.
  3. Step 3: While roasting, heat 1 tbsp olive oil in a large pot over medium heat. Add 4 minced garlic cloves and 1/4 tsp crushed red pepper flakes if using, sauté for 1 minute until fragrant.
  4. Step 4: Add the roasted vegetables to the pot along with 1/4 cup chopped fresh basil and 1 tsp chopped fresh thyme. Simmer over low heat for 10 minutes to blend flavors, stirring occasionally.
  5. Step 5: Adjust seasoning with additional salt and pepper if needed. Serve warm as a satisfying vegetarian stew.

Frequently asked questions

How long does Ratatouille-Inspired Roasted Vegetable Stew take to make?

Total time is about 55 minutes (20 min prep + 35 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Ratatouille-Inspired Roasted Vegetable Stew?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep pint, halved cherry tomatoes from drying out.

Can I substitute ingredients in Ratatouille-Inspired Roasted Vegetable Stew?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Ratatouille-Inspired Roasted Vegetable Stew for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

Is Ratatouille-Inspired Roasted Vegetable Stew whole30?

Yes — this recipe is tagged whole30, vegetarian, gluten free, dairy free, paleo based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.